Merge tag 'sunxi-clk-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-allwinner

Pull Allwinner clk driver updates from Chen-Yu Tsai:

In this cycle support for power-of-two single divider clocks was added.
This covers some of the clocks found in the A523 MCU PRCM clock and
reset controller, for which support was added as well.

Besides the new controller, a missing clock was added for the A523's
main clock controller. The RTC clock driver gained specifics for the
A523's RTC block for tweaking the clock rate of the internal oscillator
to get it closer to what the RTC needs.

* tag 'sunxi-clk-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: add support for the A523/T527 MCU CCU
  clk: sunxi-ng: div: support power-of-two dividers
  clk: sunxi-ng: sun55i-a523-ccu: Add missing NPU module clock
  dt-bindings: clock: sun55i-a523-ccu: Add A523 MCU CCU clock controller
  dt-bindings: clock: sun55i-a523-ccu: Add missing NPU module clock
  clk: sunxi-ng: sun6i-rtc: Add A523 specifics

Author: bebarino

Documentation/devicetree/bindings/clock/allwinner,sun55i-a523-ccu.yaml

@@ -19,18 +19,19 @@ properties:
   compatible:
     enum:
       - allwinner,sun55i-a523-ccu
+      - allwinner,sun55i-a523-mcu-ccu
       - allwinner,sun55i-a523-r-ccu
 
   reg:
     maxItems: 1
 
   clocks:
     minItems: 4
-    maxItems: 5
+    maxItems: 9
 
   clock-names:
     minItems: 4
-    maxItems: 5
+    maxItems: 9
 
 required:
   - "#clock-cells"
@@ -63,6 +64,38 @@ allOf:
             - const: iosc
             - const: losc-fanout
 
+  - if:
+      properties:
+        compatible:
+          enum:
+            - allwinner,sun55i-a523-mcu-ccu
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: High Frequency Oscillator (usually at 24MHz)
+            - description: Low Frequency Oscillator (usually at 32kHz)
+            - description: Internal Oscillator
+            - description: Audio PLL (4x)
+            - description: Peripherals PLL 0 (300 MHz output)
+            - description: DSP module clock
+            - description: MBUS clock
+            - description: PRCM AHB clock
+            - description: PRCM APB0 clock
+
+        clock-names:
+          items:
+            - const: hosc
+            - const: losc
+            - const: iosc
+            - const: pll-audio0-4x
+            - const: pll-periph0-300m
+            - const: dsp
+            - const: mbus
+            - const: r-ahb
+            - const: r-apb0
+
   - if:
       properties:
         compatible:

drivers/clk/sunxi-ng/Kconfig

@@ -57,6 +57,11 @@ config SUN55I_A523_CCU
 	default ARCH_SUNXI
 	depends on ARM64 || COMPILE_TEST
 
+config SUN55I_A523_MCU_CCU
+	tristate "Support for the Allwinner A523/T527 MCU CCU"
+	default ARCH_SUNXI
+	depends on ARM64 || COMPILE_TEST
+
 config SUN55I_A523_R_CCU
 	tristate "Support for the Allwinner A523/T527 PRCM CCU"
 	default ARCH_SUNXI

drivers/clk/sunxi-ng/Makefile

@@ -34,6 +34,7 @@ obj-$(CONFIG_SUN50I_H6_CCU)	+= sun50i-h6-ccu.o
 obj-$(CONFIG_SUN50I_H6_R_CCU)	+= sun50i-h6-r-ccu.o
 obj-$(CONFIG_SUN50I_H616_CCU)	+= sun50i-h616-ccu.o
 obj-$(CONFIG_SUN55I_A523_CCU)	+= sun55i-a523-ccu.o
+obj-$(CONFIG_SUN55I_A523_MCU_CCU)	+= sun55i-a523-mcu-ccu.o
 obj-$(CONFIG_SUN55I_A523_R_CCU)	+= sun55i-a523-r-ccu.o
 obj-$(CONFIG_SUN4I_A10_CCU)	+= sun4i-a10-ccu.o
 obj-$(CONFIG_SUN5I_CCU)		+= sun5i-ccu.o
@@ -61,6 +62,7 @@ sun50i-h6-ccu-y			+= ccu-sun50i-h6.o
 sun50i-h6-r-ccu-y		+= ccu-sun50i-h6-r.o
 sun50i-h616-ccu-y		+= ccu-sun50i-h616.o
 sun55i-a523-ccu-y		+= ccu-sun55i-a523.o
+sun55i-a523-mcu-ccu-y		+= ccu-sun55i-a523-mcu.o
 sun55i-a523-r-ccu-y		+= ccu-sun55i-a523-r.o
 sun4i-a10-ccu-y			+= ccu-sun4i-a10.o
 sun5i-ccu-y			+= ccu-sun5i.o